8TLN

STRUCTURAL COMPARISON SUGGESTS THAT THERMOLYSIN AND RELATED NEUTRAL PROTEASES UNDERGO HINGE-BENDING MOTION DURING CATALYSIS


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.6 Å

wwPDB Validation 3D Report Full Report


This is version 1.3 of the entry. See complete history

Literature

Structural comparison suggests that thermolysin and related neutral proteases undergo hinge-bending motion during catalysis.

Holland, D.R.Tronrud, D.E.Pley, H.W.Flaherty, K.M.Stark, W.Jansonius, J.N.McKay, D.B.Matthews, B.W.

(1992) Biochemistry 31: 11310-11316


  • PubMed Abstract: 
  • Crystal structures are known for three members of the bacterial neutral protease family: thermolysin from Bacillus thermoproteolyticus (TLN), the neutral protease from Bacillus cereus (NEU), and the elastase of Pseudomonas aeruginosa (PAE), both in f ...

    Crystal structures are known for three members of the bacterial neutral protease family: thermolysin from Bacillus thermoproteolyticus (TLN), the neutral protease from Bacillus cereus (NEU), and the elastase of Pseudomonas aeruginosa (PAE), both in free and ligand-bound forms. Each enzyme consists of an N-terminal and C-terminal domain with the active site formed at the junction of the two domains. Comparison of the different molecules reveals that the structure within each domain is well conserved, but there are substantial hinge-bending displacements (up to 16 degrees) of one domain relative to the other. These domain motions can be correlated with the presence or absence of bound inhibitor, as was previously observed in the specific example of PAE [Thayer, M.M., Flaherty, K.M., & McKay, D.B. (1991) J. Biol. Chem. 266, 2864-2871]. The binding of inhibitor appears to be associated with a reduction of the domain hinge-bending angle by 6-14 degrees and a closure of the "jaws" of the active site cleft by about 2 A. Crystallographic refinement of the structure of thermolysin suggests that electron density seen in the active site of the enzyme in the original structure determination probably corresponds to a bound dipeptide. Thus, the crystal structure appears to correspond to an enzyme-inhibitor or enzyme-product complex, rather than the free enzyme, as has previously been assumed.


    Related Citations: 
    • Crystallographic Study of the Binding of Dipeptide Inhibitors to Thermolysin. Implications for the Mechanism of Catalysis
      Kester, W.R.,Matthews, B.W.
      (1977) Biochemistry 16: 2506
    • Structure of Thermolysin Refined at 1.6 Angstroms Resolution
      Holmes, M.A.,Matthews, B.W.
      (1982) J.Mol.Biol. 160: 623
    • Amino-Acid Sequence of Thermolysin
      Titani, K.,Hermodson, M.A.,Ericsson, L.H.,Walsh, K.A.,Neurath, H.
      (1972) Nature New Biol. 238: 35
    • Structure of Thermolysin
      Matthews, B.W.,Colman, P.M.,Jansonius, J.N.,Titani, K.,Walsh, K.A.,Neurath, H.
      (1972) Nature New Biol. 238: 41
    • Role of Calcium in the Thermal Stability of Thermolysin
      Dahlquist, F.W.,Long, J.W.,Bigbee, W.L.
      (1976) Biochemistry 15: 1103
    • The Structure of Thermolysin,an Electron Density Map at 2.3 Angstroms Resolution
      Colman, P.M.,Jansonius, J.N.,Matthews, B.W.
      (1972) J.Mol.Biol. 70: 701
    • Binding of Hydroxamic Acid Inhibitors to Crystalline Thermolysin Suggests a Pentacoordinate Zinc Intermediate in Catalysis
      Holmes, M.A.,Matthews, B.W.
      (1981) Biochemistry 20: 6912
    • Binding of the Biproduct Analog L-Benzylsuccinic Acid to Thermolysin Determined by X-Ray Crystallography
      Bolognesi, M.C.,Matthews, B.W.
      (1979) J.Biol.Chem. 254: 634
    • The Conformation of Thermolysin
      Matthews, B.W.,Weaver, L.H.,Kester, W.R.
      (1974) J.Biol.Chem. 249: 8030
    • A Crystallographic Study of the Complex of Phosphoramidon with Thermolysin. A Model for the Presumed Catalytic Transition State and for the Binding of Extended Substrates
      Weaver, L.H.,Kester, W.R.,Matthews, B.W.
      (1977) J.Mol.Biol. 114: 119
    • Structure of a Mercaptan-Thermolysin Complex Illustrates Mode of Inhibition of Zinc Proteases by Substrate-Analogue Mercaptans
      Monzingo, A.F.,Matthews, B.W.
      (1982) Biochemistry 21: 3390
    • Binding of Lanthanide Ions to Thermolysin
      Matthews, B.W.,Weaver, L.H.
      (1974) Biochemistry 13: 1719
    • Three Dimensional Structure of Thermolysin
      Matthews, B.W.,Jansonius, J.N.,Colman, P.M.,Schoenborn, B.P.,Duporque, D.
      (1972) Nature New Biol. 238: 37
    • Evidence of Homologous Relationship between Thermolysin and Neutral Protease a of Bacillus Subtilis
      Levy, P.L.,Pangburn, M.K.,Burstein, Y.,Ericsson, L.H.,Neurath, H.,Walsh, K.A.
      (1975) Proc.Natl.Acad.Sci.USA 72: 4341
    • Comparison of the Structures of Carboxypeptidase a and Thermolysin
      Kester, W.R.,Matthews, B.W.
      (1977) J.Biol.Chem. 252: 7704


    Organizational Affiliation

    Institute of Molecular Biology, University of Oregon, Eugene 97403.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
THERMOLYSIN
E
316Bacillus thermoproteolyticusGene Names: npr
EC: 3.4.24.27
Find proteins for P00800 (Bacillus thermoproteolyticus)
Go to UniProtKB:  P00800
Small Molecules
Ligands 5 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
ZN
Query on ZN

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Download CCD File 
E
ZINC ION
Zn
PTFCDOFLOPIGGS-UHFFFAOYSA-N
 Ligand Interaction
CA
Query on CA

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E
CALCIUM ION
Ca
BHPQYMZQTOCNFJ-UHFFFAOYSA-N
 Ligand Interaction
LYS
Query on LYS

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E
LYSINE
C6 H15 N2 O2
KDXKERNSBIXSRK-YFKPBYRVSA-O
 Ligand Interaction
VAL
Query on VAL

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E
VALINE
C5 H11 N O2
KZSNJWFQEVHDMF-BYPYZUCNSA-N
 Ligand Interaction
DMS
Query on DMS

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Download CCD File 
E
DIMETHYL SULFOXIDE
C2 H6 O S
IAZDPXIOMUYVGZ-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.6 Å
  • Space Group: P 61 2 2
Unit Cell:
Length (Å)Angle (°)
a = 94.100α = 90.00
b = 94.100β = 90.00
c = 131.400γ = 120.00
Software Package:
Software NamePurpose
TNTrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 1994-04-30
    Type: Initial release
  • Version 1.1: 2008-03-25
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance
  • Version 1.3: 2017-11-29
    Type: Derived calculations, Other